Those with Sun trine Moon have a harmonious balance between their self-expression and emotional responses. Usually, there are natural talents and gifts within the element of the trine. When the Sun and Moon are in easy expression it can bolster the sense of well-being between the masculine and feminine parts of the personality. In older textbooks, it is stated that the relationship with the parents is generally a favourable one. The individual feels comfortable expressing their outer self and normally feels relaxed with themselves. Even when things don’t work out for the best, they are more likely to keep a pleasant atmosphere. Ordinarily, those with Sun trine Moon can have a natural way of being in the world, and the energy tends to flow smoothly.
When the Sun is making a positive aspect to the Moon, this means that you’re likely to succeed in your life, through promotion, prosperity, and help from powerful people. You’re likely to gain employment easily, and earn the respect of other people. Your health and vitality is good, helping you achieve your goals. You are also likely to attract a partner who helps raise your position in society and assists you in achieving your goals. By Stephanie Johnson, Solar Fire Report
The individual will try to maintain good family relationships throughout life. With the Sun reinforcing the Moon, they usually feel at ease with both men and women, and will often possess a kind of emotional confidence. There is a natural empathy, along with sympathy, received from females, who are very supportive of their creative goals and life-path. In general, their moods, feelings, and unconscious patterns help support the ego.
It is an influence which points to a comfortable home and much mutual understanding between native and marriage partner. Where this is otherwise, aspects to the lights from Venus must of course be considered, together with the 7th house. In some way it is likely to denote a happy life with the parents. There is not likely to be a violent breaking from home conditions, or, if there is something of this sort, re-adjustment ensues speedily and readily. Often the partner helps the native directly, or shares his interests. By C.E.O Carter, The Astrological Aspects
Trines naturally find ways of bringing harmony, accord and agreement, and the individual feels at home with themselves. This can be challenging when the marriage is in trouble and the native is unable to perceive any problems, expecting the partner to always maintain a helpful and supportive attitude, so difficulties have a tendency to escalate.
In the book Cosmic Marriage, there is an example of a man who has Sun trine Moon which is also square Uranus. The man had two successive marriages and each wife left him because he spent too much time away from home. So, if he didn’t see the problem the first time around, he has certainly been blind to it a second time. Consequently, he is so comfortable with his lifestyle and doesn’t feel the need to change and cannot see a problem.